10GbE SFP+ Network Card Compatible with X520-DA2 PCIe Ethernet Card with 82599ES Controller, 2-Port SFP+ (10GBASE-SR/LR/DAC), PCIe 2.0, SR-IOV, PXE/iSCSI, Jumbo Frames PCI Network Adapter

Built around proven 82599ES 10GbE controller, this dual-port SFP+ adapter delivers stable 10G performance for virtualization, storage and routing. It provides PCIe 2.0 x8 connectivity and supports SR-IOV, VMDq, MSI-X, VLAN and jumbo frames to reduce CPU overhead and improve multi-queue throughput. Use SFP+ DAC for short reaches, or 10GBASE-SR/LR optics with LC fiber; RJ45 requires a 10GBASE-T SFP+ module (sold separately). Brackets for full-height and low-profile cases ensure easy fitment in 1U-4U servers and small form-factor builds. OS support spans common hypervisors and server distributions, making it a dependable choice for ESXi/Proxmox/KVM, TrueNAS and firewalls. Also referred to as a PCI network adapter by users (PCIe interface).

• Ports: 2× SFP+ 10GbE (use SFP+ DAC or 10GBASE-SR/LR optics; RJ45 requires a 10GBASE-T SFP+ module, typically sold separately)
• Compatible with: X520-DA2; Controller: 82599ES 10GbE.
• Interface: PCIe 2.0 x8; Brackets: Full-height & Low-profile included; Boot: PXE/iSCSI.
• Features: SR-IOV, VMDq, MSI-X, VLAN offload, checksum/TSO/LRO, jumbo frames.
• PERFECT FOR: ESXi/Proxmox/Hyper-V/KVM virtualization, TrueNAS/pfSense/OPNsense, 10Gb backbone for servers & workstations.